Table of Contents
Advertisement
cc : Operating status of table at an error occurred.
(tbl sq jcp)
13
: The rotation stop position determination error
of a table.
11 to 12
: The loading position determination error of a
table.
dd : Operating status of mechanism deck at an error occurred.
(lod op jcp)
00
: Complete the operation.
10 to 1F
: Open operating.
20 to 2F
: Close operating.
30 to 3F
: Release operating.
60 to 6F
: Chucking operating.
70 to 7F
: Kicking operating.
80 to 8F
: Returning the BU to home position. (after
kicking)
ee : The status of table operation. ("n" is unfixed)
(tbl op cp)
1n
: Rotating in the direction of a forward.
2n
: Rotating in the direction of a reverse.
6. Version Information
On the Test Mode Menu screen, selecting [6] displays the ROM
version and region code.
The parenthesized hexadecimal number in version field is checksum
value of ROM.
## Version Information ##
IF con.
Ver.x. xxx
SYScon.
Ver.x. xx
(xxxx)
Model
DAV-SB500W
Region
xx
Config
xxxxxxxx
Front End Ver.x.xx
Exit: RETURN
IF con.
: The version of system controller (IC101).
SYScon. : The version of DVD system processor (IC207).
Front End : The version of mechanism controller (IC901).
7. Video Level Adjustment
On the Test Mode Menu screen, selecting [7] displays color bars for
video level adjustment. During display of color bars, OSD disappears
but the menu screen will be restored if pressing the [RETURN] key.
HCD-SB500W
ELECTRICAL ADJUSTMENTS
About the dicision to pass or fail of the optical pick-up block,
refer to "DICISION TO PASS OR FAIL OF THE OPTICAL PICK-
UP BLOCK" (see page 6)
AUTO SERVO ADJUSTMENT
After parts related to the servo circuit (RF amplifier (IC001), DSP
(IC509), motor driver (IC501), EEPROM (IC903) so on) are re-
placed, re-adjusting the servo circuit is necessary. Select "ALL" at
"1. DRIVE AUTO ADJUSTMENT" (Refer to page 17 in TEST
MODE) and adjust DVD-SL (single layer), CD and DVD-DL (dual
layer).
DIAT SIGNAL RF LEVEL ADJUSTMENT
This adjustment is performed in order to adjust the transmission
distance of RF signal for DIAT communication.
Connection:
DIAT TRANSMIT
oscilloscope
board
TP815
(RF AMP OUT)
Procedure:
1. Connect the oscilloscope to TP815 (RF AMP OUT) and GND
on the DIAT TRANSMIT board.
2. Connect DIR-T1 to DIR-T1 jack (J301).
3. Adjust RV801 on the DIAT TRANSMIT board so that the
center of waveform becomes 1.0 Vp-p.
4. Confirm trigger is locked.
5. Adjust RV801 on the DIAT TRANSMIT board so that the
center of waveform becomes 2.2 to 2.4 Vp-p.
RF Signal Reference Waveform
VOLT/DIV : 500mV
TIME/DIV : 500ns
level : 2.2 to 2.4 Vp-p
Adjustment Location:
– DIAT TRANSMIT Board (Component Side) –
IC804
IC805
TP815
(RF AMP OUT)
23
23
HCD-SB500W
SECTION 5
Advertisement
Table of Contents
